Bumpy taxiway - LIRF holding short of 16R

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Hi all,I'm having problems with a bumpy taxiway which, because of my realism settings, is causing damage to the aircraft causing it to "crash".The airport in question is the default FS2002 Rome Fiumicino and the problem area is just short of the holding point to 16R. Other taxiways seem okay (as does the rest of this one) although I don't use those as often.I have Italy terrain mesh scenery installed but switching this off has no effect and the problem persists.Can anyone else replicate this problem? If so, then an exclude file might be the answer to flatten the area in question.Cheers,

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Guest CapnCol

I have this also on a few taxiways. Particular ones that spring to mind are East Midlands (when taxying to R9), Mauritius (taxying to R14) and Skavska (taxying to R8). There are others (not too many) but I can't remember at the moment. The strange thing is that it only seems to happen when taxying to the runway, never when taxying off it. Also the bigger the plane, the less likely the damage.Q - How do "exclude files" work?Colin

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Hi Colin,Thanks for confirming other airports suffer from this. Maybe if MS had decided on a patch it could have been resolved but as it is an exclude file will have to do.Exclude files are a hangover from previous versions of FS where you wanted to overlay a default airport with a new customised one. You determine the area that you want to "exclude" in the default scenery and by supplying the NE and SW lat/lon points into a program written by Pete Dowson it would create a BGL file that once placed in a scenery folder will blank out the default scenery allowing your new custom scenery to lay on top of the default without both showing through.An exclude file is not needed now because the same effect can be achieved with extra parameters in a scenery layer in SCENERY.CFG for the area in question. I'm hoping this will have the effect of flattening the taxiway thus preventing the crashing. I'll experiment and see if it will work.BTW, I was flying a 767 when it happened so I don't think the size of aircraft matters.Cheers,

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The bumpy taxiways don't have a smoothing function under them. You could use any number of scenery design tools, Airport for Windows, FSSC, etc. to incorporate a small scenery *.bgl to correct the problem.Since Page C. Cline indicates his runway apron fix list is getting short, maybe he'll do a taxiway fix if you give him the airport name, and the LAT/LON of the taxiway in question.

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Hi Ray,Apart from the mesh/elevation apron and runway bumps there is another phenomenon which FS2000 and Fs2002 have in this regard:- With lighter aircraft, there is a tendency to suspension instability whilst taxiing in a tail or cross wind. We had this problem with the Falcon 50 and after a lot of experimenting I discovered it is made worse by one of the pitch stability parameters in the airfiles. The higher the pitch stab, and lighter the aircraft, plus the greater the wind speed, the more it happens.If this happens to you with no wind enabled it is I'm sure scenery related. If it happens in a tail wind it is airfile related, or possibly both. Best Regards,Rob Young

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Hi Rob,Nice to hear from you again. Seems like only yesterday we had that mammoth thread on FS Forum regarding stutters!! Nice to know they're still with us albeit greatly reduced.I'm sure this problem is related to the terrain because if I turn left slightly earlier (about 80ft) and taxi parallel to the final part of the taxiway leading to the holding point for 16R at LIRF the problem disappears. It's almost like the taxiway smoothing has been displaced.I use the Wilco 767-300 all the time now so I wouldn't have thought that aircraft would have been affected by such a light wind. It was 220/08 at the time.Many thanks for your thoughts on this.Regards,

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I tried taxiing onto 16R at LIRF using both original 767PIC and POSKY aircraft and things were slightly less bouncy with the original. On this occasion I was able to taxi onto the runway with both aircraft by keeping the speed down to around 5kts.There's obviously a problem here with many airports but requests to Page C Cline highlighting the problem taxiways should help.I would ask everyone who is experiencing this problem to contact Page.Regards,

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Hi Ray,Just got back from Rome. Used my trusty Cessna 182 and went to where you got the bouncing. Sure enough, there it was. So tried my regular fix that I do for aprons but it didn't work. So...I tried something else, and I think I got rid of the bounce. I'll e-mail you my fix, and if you will, check it out. If it works, then we're on to something.

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I'm pleased to report that Page has created a fix for LIRF and I can now taxi to 16R without problem. I'd like to thank Page for his efforts in identifying and solving this problem.For those of you who have similar problems you might wish to post them at a new thread I've started - "Bumpy taxiways problems". Page is happy to start a new project for troublesome taxiways but please be specific about which part of the taxiway is causing the problem.Another happy ending :-)Cheers,

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Hi Page,I suspect this 'bumpy taxiway' problem will equal the apron one :-)I had the problem with add-on scenery from a well known UK designer but soon after the problem was mentioned he produced a fix.I understand that it involves putting a 'hard' layer under the airport, but not being a scenery designer I can't be sure on that.It does seem strange that the problem affects default scenery as well as add-on and I don't remember having the problem in FS2k.Rgds

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Hi VulcanNoting by your signature, why ain't you in bed?You're right about the fix. Not hard to do, but apparently necessary. My apron fixes are of the same ilk. Myself, I wasn't aware of the problem until I came across this thread. So, when I contacted Ray, it turned out that the fix wasn't that hard to do. I don't think this problem is as prevalent as the bleedthru problem with aprons or disappearing taxilines. Anyway, if you've read the first part of this thread, others have had the same problem. Fixable. I'm always on call.Take care,

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Hi Vulcan,First of all, I suspect that this fix will be mainly for fixing bouncing on addon sceneries. There's not that many airports in default sceneries that have the problem. What I've been doing is hardening the complete airport because I don't know where designers are putting their taxiways, etc. This should eliminate dirt & dust arising while on taxiways too.Get your list of bumpy airports and let me know.Of course with thousands of addon sceneries, there's no way I'll get to them all by FS2004!

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